69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini free implementation for busybox
|
|
*
|
|
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* Licensed under the GPL version 2, see the file LICENSE in this tarball.
|
|
*/
|
|
|
|
/* getopt not needed */
|
|
|
|
#include "busybox.h"
|
|
|
|
int free_main(int argc, char **argv)
|
|
{
|
|
struct sysinfo info;
|
|
sysinfo(&info);
|
|
|
|
/* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */
|
|
if (info.mem_unit==0) {
|
|
info.mem_unit=1;
|
|
}
|
|
if ( info.mem_unit == 1 ) {
|
|
info.mem_unit=1024;
|
|
|
|
/* TODO: Make all this stuff not overflow when mem >= 4 Gib */
|
|
info.totalram/=info.mem_unit;
|
|
info.freeram/=info.mem_unit;
|
|
#ifndef __uClinux__
|
|
info.totalswap/=info.mem_unit;
|
|
info.freeswap/=info.mem_unit;
|
|
#endif
|
|
info.sharedram/=info.mem_unit;
|
|
info.bufferram/=info.mem_unit;
|
|
} else {
|
|
info.mem_unit/=1024;
|
|
/* TODO: Make all this stuff not overflow when mem >= 4 Gib */
|
|
info.totalram*=info.mem_unit;
|
|
info.freeram*=info.mem_unit;
|
|
#ifndef __uClinux__
|
|
info.totalswap*=info.mem_unit;
|
|
info.freeswap*=info.mem_unit;
|
|
#endif
|
|
info.sharedram*=info.mem_unit;
|
|
info.bufferram*=info.mem_unit;
|
|
}
|
|
|
|
if (argc > 1 && **(argv + 1) == '-')
|
|
bb_show_usage();
|
|
|
|
printf("%6s%13s%13s%13s%13s%13s\n", "", "total", "used", "free",
|
|
"shared", "buffers");
|
|
|
|
printf("%6s%13ld%13ld%13ld%13ld%13ld\n", "Mem:", info.totalram,
|
|
info.totalram-info.freeram, info.freeram,
|
|
info.sharedram, info.bufferram);
|
|
|
|
#ifndef __uClinux__
|
|
printf("%6s%13ld%13ld%13ld\n", "Swap:", info.totalswap,
|
|
info.totalswap-info.freeswap, info.freeswap);
|
|
|
|
printf("%6s%13ld%13ld%13ld\n", "Total:", info.totalram+info.totalswap,
|
|
(info.totalram-info.freeram)+(info.totalswap-info.freeswap),
|
|
info.freeram+info.freeswap);
|
|
#endif
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|